Institution
City University London
Education•London, United Kingdom•
About: City University London is a education organization based out in London, United Kingdom. It is known for research contribution in the topics: Population & Health care. The organization has 5735 authors who have published 17285 publications receiving 453290 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors considered an optimum tuned mass damper-inerter (TMDI) design framework accommodating the above effects while accounting for parametric uncertainty to the host structure properties, modeled as a linear multi degree of freedom system, and modeled as stationary colored noise.
Abstract: The tuned mass-damper-inerter (TMDI) is a recently proposed linear passive dynamic vibration absorber for the seismic protection of buildings. It couples the classical tuned mass damper (TMD) with an inerter, a two-terminal device resisting the relative acceleration of its terminals, in judicial topologies, achieving mass-amplification and higher-modes-damping effects compared to the TMD. This paper considers an optimum TMDI design framework accommodating the above effects while accounting for parametric uncertainty to the host structure properties, modeled as a linear multi degree of freedom system, and to the seismic excitation, modeled as stationary colored noise. The inerter device constant, acting as a TMD mass amplifier, is treated as a design variable, whereas performance variables sensitive to high-frequency structural response dynamics are used to account for the TMDI influence to the higher structural modes. Reliability criteria are adopted for quantifying the structural performance, expressed through the probability of occurrence of different failure modes related to the trespassing of acceptable thresholds for the adopted performance variables: floor accelerations, interstory drifts, and attached mass displacement. The design objective function is taken as a linear combination of these probabilities following current performance-based seismic design trends. Analytical and simulation-based tools are adopted for the efficient estimation of the underlying stochastic integral defining the structural performance under uncertainty. A 10-story building under stationary Kanai-Tajimi stochastic excitation is considered to illustrate the design framework for various TMDI topologies and attached mass values. It is shown that the TMDI achieves enhanced structural performance and robustness to building and excitation uncertainties compared to same mass/weight TMDs.
193 citations
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TL;DR: In this paper, a 3D numerical simulation methodology for the flow and heat transfer at the pore scale level of high porosity open cell metal foam is presented, which is discretised using a tetrahedral volume mesh for both void and solid phases.
192 citations
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TL;DR: In this article, the authors consider the special pressures on middle managers to tell stories about their organization that make sense to three different audiences; their superiors, their subordinates and themselves, and suggest why these characteristics may be debilitating for middle management practice.
Abstract: This article seeks to illuminate our understanding of the lives of middle managers by considering the special pressures on them to tell stories about their organization that make sense to three different audiences; their superiors, their subordinates and themselves. Each of those audiences will demand to hear a convincing account, but the senior audience may trample unaware on middle managers’ stories, the junior audience may view them with scepticism or hostility, and the self audience may be fearful of losing the plot. Illustrated by four middle management storytelling situations, the article offers a narrative understanding of the peculiar loneliness, precariousness and vulnerability that characterize middle management, and suggests why these characteristics may be debilitating for middle management practice.
192 citations
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TL;DR: It is argued that ecological public health—which integrates the material, biological, social, and cultural aspects of public health)—is the way forward for the 21st century.
Abstract: Public health thinking requires an overhaul. Tim Lang and Geof Rayner outline five models and traditions, and argue that ecological public health—which integrates the material, biological, social, and cultural aspects of public health—is the way forward for the 21st century
191 citations
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TL;DR: In this article, the use of a previously presented general criterion of failure for high cycle multiaxial fatigue, τa/tA,B+σn.max/2σT= 1, is extended to cases where the shear and normal stress on the critical plane are non-proportional and also to give life predictions in the range of 104 to 106 cycles.
Abstract: — The use of a previously presented general criterion of failure for high cycle multiaxial fatigue, τa/tA,B+σn.max/2σT= 1, is extended to cases where the shear and normal stress on the critical plane are non-proportional and also to give life predictions in the range of 104 to 106 cycles. The criterion takes account of whether case A cracks, growing along the surface, or case B cracks, growing in from the surface, occur.
191 citations
Authors
Showing all 5822 results
Name | H-index | Papers | Citations |
---|---|---|---|
Andrew M. Jones | 103 | 764 | 37253 |
F. Rauscher | 100 | 605 | 36066 |
Thorsten Beck | 99 | 373 | 62708 |
Richard J. K. Taylor | 91 | 1543 | 43893 |
Christopher N. Bowman | 90 | 639 | 38457 |
G. David Batty | 88 | 451 | 23826 |
Xin Zhang | 87 | 1714 | 40102 |
Richard J. Cook | 84 | 571 | 28943 |
Hugh Willmott | 82 | 310 | 26758 |
Scott Reeves | 82 | 441 | 27470 |
Sarah-Jayne Blakemore | 81 | 211 | 29660 |
Mats Alvesson | 78 | 267 | 38248 |
W. John Edmunds | 75 | 252 | 24018 |
Sheng Chen | 71 | 688 | 27847 |
Christopher J. Taylor | 71 | 415 | 30948 |